reflow/reflowctl/temp_level.py

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# -*- coding: utf-8 -*-
from PyQt4 import QtGui, QtCore
from control_widgets import AddRemoveWidget
def calc_colors(count):
if count == 1:
return [QtGui.QColor(0, 255, 0),]
r = 0
g = 255
step = int(512. / (count-1))
colors = list()
for i in range(count):
colors.append(QtGui.QColor(r, g, 0))
if r < 255:
r += step
if r > 255:
g -= (r - 256)
r = 255
g = max(0, g)
else:
g -= step
g = max(0, g)
return colors
def set_colors(temp_levels):
colors = calc_colors(len(temp_levels) - 1)
ix = 0
for temp_level in temp_levels:
if not temp_level.is_env:
temp_level.color = colors[ix]
ix += 1
else:
temp_level.color = QtGui.QColor("black")
class TempLevel(QtCore.QObject):
def __init__(self, name, temp, is_env=False):
super(TempLevel, self).__init__()
self.name = name
self.temp = temp
self.is_env = is_env
self.color = None
def __str__(self):
return "<TempLevel: name=%r, temp=%r>" % (self.name, self.temp)
def __lt__(self, other):
return self.temp < other.temp
def __le__(self, other):
return self.temp <= other.temp
def __eq__(self, other):
return self.temp == other.temp
def is_between(self, tl1, tl2):
tmp = [tl1, tl2, self]
tmp.sort()
return self == tmp[1]
def set_next(self, temp_level):
if temp_level is self:
raise ValueError("same temp_level")
self.next = temp_level
def __repr__(self):
return "TempLevel(%r, %r, %r)" % (self.name, self.temp, self.is_env)
class TempLevelModel(QtCore.QAbstractTableModel):
solder_changed = QtCore.pyqtSignal()
status_message = QtCore.pyqtSignal(QtCore.QString, int)
def __init__(self, parent):
super(TempLevelModel, self).__init__(parent)
self._changed = False
self.temp_levels = list()
self.headerdata = [u"Name", u"Temperature (°C)"]
def headerData(self, col, orientation, role):
if orientation == QtCore.Qt.Horizontal and role == QtCore.Qt.DisplayRole:
return QtCore.QVariant(self.headerdata[col])
return QtCore.QVariant()
def rowCount(self, parent):
return len(self.temp_levels)
def columnCount(self, parent):
return 2
def data(self, index, role):
if not index.isValid():
return QtCore.QVariant()
if role == QtCore.Qt.DisplayRole:
col = index.column()
if col == 0:
return QtCore.QVariant(self.temp_levels[index.row()].name)
else:
return QtCore.QVariant(self.temp_levels[index.row()].temp)
if index.column() == 0 and role == QtCore.Qt.DecorationRole:
p = QtGui.QPixmap(10, 10)
color = self.temp_levels[index.row()].color
p.fill(color)
return p
return QtCore.QVariant()
def flags(self, index):
if not index.isValid():
return 0
if index.row() != 0:
return QtCore.Qt.ItemFlags(QtCore.Qt.ItemIsEnabled | QtCore.Qt.ItemIsSelectable | QtCore.Qt.ItemIsEditable)
else:
return QtCore.Qt.ItemFlags(QtCore.Qt.ItemIsEnabled | QtCore.Qt.ItemIsSelectable)
def neigbors(self, temp_level):
ix = self.temp_levels.index(temp_level)
return self.temp_levels[ix-1], self.temp_levels[ix+1]
def setData(self, index, variant, role):
if index.isValid() and role == QtCore.Qt.EditRole:
col = index.column()
if col == 0:
self.temp_levels[index.row()].name = unicode(variant.toString())
elif col == 1:
temp, res = variant.toInt()
tl = self.temp_levels[index.row()]
try:
tl0 = self.temp_levels[index.row() - 1]
if tl0.temp >= temp:
self.status_message.emit(QtCore.QString(u"Error: TempLevel %r cannot be moved across TempLevel %r!" % (tl.name, tl0.name)), 10000)
return False
except Exception, e:
pass
try:
tl1 = self.temp_levels[index.row() + 1]
if tl1.temp <= temp:
self.status_message.emit(QtCore.QString(u"Error: TempLevel %r cannot be moved across TempLevel %r!" % (tl.name, tl1.name)), 10000)
return False
except Exception, e:
pass
tl.temp = temp
self.solder_changed.emit()
return True
return False
def remove_temp_level(self, index):
tmp = self.temp_levels[index]
del self.temp_levels[index]
self.reset()
self.solder_changed.emit()
return tmp
def add_temp_level(self, index, temp_level):
self.temp_levels.insert(index.row() + 1, temp_level)
set_colors(self.temp_levels)
self.reset()
self.solder_changed.emit()
def append_temp_level(self, temp_level):
self.temp_levels.append(temp_level)
set_colors(self.temp_levels)
self.reset()
self.solder_changed.emit()
def setTempLevels(self, temp_levels):
assert isinstance(temp_levels, list)
self.temp_levels = temp_levels
self.reset()
def clear(self):
self.temp_levels = list()
self.reset()
def get_temp_level(self, ix):
return self.temp_levels[ix]
class TempLevelWidget(QtGui.QWidget):
temp_level_removed = QtCore.pyqtSignal(TempLevel)
temp_level_added = QtCore.pyqtSignal(TempLevel, TempLevel)
solder_changed = QtCore.pyqtSignal()
def __init__(self, parent, readonly=False):
super(TempLevelWidget, self).__init__(parent)
self.readonly = readonly
self.temp_level_model = TempLevelModel(self)
self.temp_level_view = QtGui.QTableView()
self.temp_level_view.setModel(self.temp_level_model)
self.temp_level_view.verticalHeader().setVisible(False)
self.temp_level_view.resizeColumnsToContents()
self.temp_level_view.horizontalHeader().setStretchLastSection(True)
self.temp_level_view.setSelectionBehavior(QtGui.QAbstractItemView.SelectRows)
h = QtGui.QHBoxLayout()
h.addWidget(self.temp_level_view)
self.setLayout(h)
self.connect(
self.temp_level_view,
QtCore.SIGNAL("clicked(QModelIndex)"),
self.temp_level_selected)
if not readonly:
self.controls = AddRemoveWidget(self)
h.addWidget(self.controls)
self.connect(
self.controls.add_button,
QtCore.SIGNAL("clicked()"),
self.append_temp_level)
self.connect(
self.controls.remove_button,
QtCore.SIGNAL("clicked()"),
self.remove_temp_level)
self.connect(
self.temp_level_model,
QtCore.SIGNAL("solder_changed()"),
self._solder_changed)
def _solder_changed(self):
self.solder_changed.emit()
def setData(self, solder):
self.temp_level_model.setTempLevels(solder.temp_levels)
self.temp_level_view.resizeColumnsToContents()
self.temp_level_view.setCurrentIndex(self.temp_level_model.index(0, 0))
def add_temp_level(self):
pass
#new_temp = old_tl.temp + (self.temp_level_model.temp_levels[index.row() + 1].temp - old_tl.temp) / 2
def append_temp_level(self):
old_tl = self.temp_level_model.temp_levels[-1]
new_temp = old_tl.temp + 20
ix = self.temp_level_model.rowCount(None)
new_tl = TempLevel("new " + str(ix), new_temp)
self.temp_level_model.append_temp_level(new_tl)
self.temp_level_view.setCurrentIndex(self.temp_level_model.index(ix, 0))
self.temp_level_added.emit(old_tl, new_tl)
def remove_temp_level(self):
self.temp_level_removed.emit(
self.temp_level_model.remove_temp_level(
self.temp_level_model.rowCount(None) - 1))
self.solder_changed.emit()
self.temp_level_view.setCurrentIndex(self.temp_level_model.index(self.temp_level_model.rowCount(None) - 1, 0))
def temp_level_selected(self, index):
if index.isValid():
row = index.row()
if not self.readonly:
self.controls.remove_button.setEnabled(not self.temp_level_model.temp_levels[row].is_env)